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Keywords: ditch
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Proceedings Papers

Paper presented at the ISRM International Workshop on Rock Mechanics and Geoengineering in Volcanic Environments, May 31–June 1, 2010
Paper Number: ISRM-IWVE-2010-004
... reinforcement shotcrete layer (10 cm) Rapids 0,25 m) Repiés 0,50 m) IP}IASE4I IPHASESI Removal of the repiés 2nd reinforcement shotcrete layer (10 cry PHASE 6 Excavation of ditches (0,5 x 0,5 m) Figure 7. Constructive phases. Full-face excavation and 3 cm thick shotcrete layer (a = 25 MPa). The tunnel stretch...

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